Bootcamp windows 7, trackpad doesn't work

I've installed windows 7 ultimate on my partitioned mid-2010 macbook pro running snow leopard. When I tried to download the drivers while going through the bootcamp process, it said they were "unavailable." Now that I'm running windows, I'm finding it impossible to right click anything, and the two finger-scroll functionality is not working either. How can I fix this? I've tried two finger tapping, putting down two fingers and clicking, option+click, etc. The trackpad will only function as the left click. Thanks